A new EU approach to air travel - the so-called traffic light system - comes into operation in Ireland from midnight tonight.
Those arriving from green regions can enter the State without being expected to restrict their movements or undergo testing for Covid-19.
Passengers from orange regions who have a negative test result for Covid-19 taken up to three days before arrival are advised that they do not need to restrict their movements.
Those arriving from red regions must continue to restrict their movements for 14 days. The European Centre for Disease Prevention and Control will publish a three-stage colour system map every week to indicate the level of risk in each area of the EU.